one set of shoe prints. >> presence of only one set of footprints at the scene when you obviously know there's been two people is an indicator that the victim very well may have been dragged from the vehicle. >> also in the dirt near the tire impressions were handprints, presumably those of the victim. >> she had put up a struggle. you could actually see imprints of her buttocks marks in almost a half circle where she had put up a struggle and was fighting. >> the only way to identify the victim was to somehow trace the keys found in her jeans. >> it seemed pretty bleak that we were going to be successful in finding the apartment that that mailbox key would open. and that the house key would open. because people are often murdered and then transported long distances. >> the town closest to the crime scene was delano. around noon, starting at the north end of town, detectives tested the key in every